Apparatus for ventilating and cooling stoke-holes of steamships.



Patented oEt. 10, I899.

ILHROBITSCHEK. APPARATUS FOR VENTlLATlNG AND COOLING STOKE HOLES 0FSTEAMSHIPS.

(Application filed Km". 23, 189B.)

3 Sheds-Sheet (No Model.)

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No. 634,563. Patented 0st. 10, I899.

M.'ROBITSCHEI(. APPARATUS FOR VENTILATING AND COOLING STOKE HOLES 0FSTEAMSHIPS.

3 Sheets8heet 2,

(Application filed Mar. 23, 1899.) (No Model.) 2

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m m 2%), liiarne y' I. ROBITSCHEK. Y APPARATUS FOR VENTl-LATINE ANDCOOLING STOKE HOLES OF STEAMSHIPS.

Ap lication filed 1m. 2a, 1899.)

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, of a ventilation-shafthaving an atomizer arstoke-hole of a steamerprovided with my im- UN-ITEDL STAT-Es PATENT OFFIQE.

MAX ROBITSCHEK, OF vinnnanus'rnm-nunenav,Assrenon or one HALF TO LEO voNHERZ, or SAME PLACE.

APPARATUS FOR VENTlLATING AND COOLING STOKE-HOLES Ol -ST EAMSHIPS.

srncmcnmn forming part of Letters Patent No. 534,563, dated October 10,1899.

Application filed March 23, 1899.

To (ZZZ whom it muty concern:

Be it known that 1, MAX RoBrrsoHEK, a subject of the Emperor ofAustria-Hungary, residing at Vienna, in the Province of Lower' Austriaand Empire of Austria-Hun gary,have invented a new and useful Apparatusfor Ven tilatin g and Cooling the Stoke-Holes of Steam ships, of whichthe following is a specification.

This invention relates to means for venti lating and cooling the stokeholes of steamships, where temperatures of from 40 to centigradeprevail. The attempts heretofore made for reducing such temperatures toa healthy degree have failed for the reason that they were based on mereventilation, which gave rise to an unbearable draft of air. I

According to this invention I cool and moisten the'air used forventilation, and to this end water-atomizers are so arranged in theupper parts of the usual ventilation-shafts as to produce adownwardly-directed jet of spray, which sucks in the air from withoutand at the same time cools and moistens it by its partial evaporation.The lower ends of the ventilation-shafts open into water-separatorshaving inclined bottoms and baffleplates, against which the current ofair and spray impinges, and these separators communicate with chambersarranged in the ceilin g of the stoke-hole and provided with a number ofoutlets for the cooled air, which descends in consequence of its greaterweight. A pump driven by the engine or fed with steam from the boilersupplies the atomizers with the necessary water under pressure, and afilter is advantageously fitted to the suction-pipe of the pump.

In order to make my invention fully understood, I shall hereinafterdescribe the same in detail with reference to the annexed three sheetsof drawings, in which- Figure l isa sectional end elevationof the provedventilating apparatus. Fig. 2 is a sectional side elevation, on line 22, Fig. 3,

ranged within its top portion and a waterseparator connected with itsbottom end. Fig. 3 is a front elevation -of the said ventilation-shaft,water-separator, and ai'r-cham her; and Fig. 4 is a sectional top view,on

Serial No. 710,258. (No model.)

lines 4 4, Figs; 2 and 3, of the said parts. Fig". 5 is a frontelevation, drawn to-a larger scale and partly in section, of theatomizer used by preference; and Fig. 6 is atop view of the saidatomizer. Fig. 7 shows the nozzle of the atomizer. Figs. 8 and 9 areasectional side elevation and top view, respectively, of the filterinterposed into the section-pipin g of the pump feeding the atomizers.

Referring to Fig. 1 of the drawings, a, is a steam-pump fed with steamby a neighboring boiler of the ship and sucking in water through thepipe at, which opens into the stream or sea. Through the piping a thewater under pressure delivered by the pump a is supplied to theatomizers b, arranged in the top portions of the ventilation-shafts c,

which are of the ordinary well-known de- 'scription.

It is obvious that effectiv'e'aton izers of any known construction maybe used. The one shown by Figs. 5 to 7 is preferred as having given goodresults in practice. It

I), from which two or three radial elbow-pipes b are branched off. Tothe lower ends of the said elbow-pipes b are screwed caps 6 having theirbottom pierced by a number of inclined bores 17, the directions of whichmay be defined as those of tangents to helices. To

the said cap?) screws a second cap 11*, in

which a hollow space or'chamber b is formed having a centraloutlet-passage b The water under pressure entering the chamber b throughthe inclined bores 1) assumes within the said chamber a rapidrotary'muvement, in consequence whereof the jet forced out through thepassage biis atomized into a conconsists of a globular body orwater-receptacle I ical jet of spray. The downwardly directed jets ofspray having a certain velocity, they suck in through the cowl c of theventilation-shaft ca certain quantity of air, and as by the atomizing ofthe water its vaporization is greatly facilitated a considerable portionof the spray passes to the state of vapor,

' thereby absorbing heat which is abstracted from the ambient air.Consequently the air vsucked in by the jets of spray is cooled andmoistened. Besides that,'it is thoroughly washed-that is to say, freedfrom dust.

In order to separate the currents of cooled, moistened, and washed airstreaming downward within the ventilation-shafts c from the particles ofwater they carry along, the said currents are caused to pass through thewaterseparators d. These waterseparators are sheet-metal receptaclesprovided with an inclined bottom d, a baffle-plate 01*, and an outlet dat their lowest point, from which a discharge-pipe d is run through thesides of the vessel. The water flowing downward along the sides of theventilation-shafts c is prevented from getting into the way of thecurrent of air by a gutter 0 arranged along the inside of the lower edgeof the shaft. It will be seen that the said gutter discharges the waterupon the highest portion of the inclined bottom (2, while the current ofair flows toward the lowest portion, as indicated by the curved arrowinFig. 2. By impinging against the baffle-plate d the particles of watercarried along are eliminated from the air and the retained water isallowed to pass downward through the hole d formed in the lower marginalportion of the plate (1 A further elimination of water takes place onthe outer surface of the sides of the cylindric air-chamberfas the endsof the said chamber, which is arranged on the ceiling of the stoke-hole,project into the water-separators (Z and ex tend nearly to the oppositeside. Thus the current of air is obliged again to change its directionbefore it gets into the air-chamber f, and consequently to impingeagainst the sides of this latter.

The air-chamber f is provided with a number of outlets f, through whichthe cool moist air descends under the action of its weight withoutcausing any draft of air.

At g a filter is interposed into the suction-pipe a of the pump a. Thisfilter may consist of abox 9, having sieve-partitions 9 between whichporous material g such as loof, (vegetable sponge,) for instanceis keptin place. The cover 9 of the box 9 is tightened on the top flange of thebox by means of cross-bars and screws 9 The branch pipe h connects thedeliverypipe a of the pump a with the outlet-pipe d of thewater-separator d and has a valve h interposed into it. By adjusting thepressure of the spring by which the said valve is weighted the quantityof water fed into the atomizers, and consequently the quantity of airsucked in by the jets of spray, may be controlled.

lVhat I claim, and desire to secure bylietters Patent of the UnitedStates, 'is

1. In an apparatus for ventilating and cooling the stoke-holes ofsteamships, the combination with the stoke-hole and itsventilationshafts of water-atomizers arranged in the top portions of theshafts and adapted to produce downwardly-directed jets of'spray, meansfor supplying water under pressure to the said atomizers, chambers withinclined bottoms and bathe-plates connected with the bottom ends of thesaid shafts and an air-chamber communicating with the said chambers,extending along the ceiling of the stoke-hole and having a plurality ofoutlets, substantially as described.

2. In an apparatus for ventilating and cooling the stoke-holes ofsteamships, the combination with the stoke-hole, its ventilation= shaftsand the steam-boiler of water-atomizers arranged in the top portions ofthe shafts and adapted to produce downwardly-directed jets of spray, asteam-pump adapted to be fed with steam from the boiler and having itsdelivery-pipe connected with the atomizers, chambers with inclinedbottoms, baffle-plates and water-outlets into which chambers the shaftsopen, and an air-chamber, communicating with the aforesaid chambers,this airchamber extending across the ceiling of the stoke-hole andhaving a plurality of outlets, substantially as described.

3. In an apparatus for ventilating and cooling the stoke-holes ofsteamships, the combination with the stoke-hole, its ventilation shaftsand the steam-boiler of water-atomizers arranged in the top portions ofthe shafts and adapted to produce downwardly-direct-' ed jets of spray,a steam-pump adapted to be fed with steam from the boiler and having itsdelivery-pipe connectedwith the atomizers, chambers with inclinedbottoms, bathe-plates and water-outlets, into which chambers the bottomends of the shafts open, an air-chamber communicating withthe aforesaidchambers, extending across the ceiling of the stokehole and having aplurality of outlets, and an automatic overflow valve with adjustableload, the said valve tapping the delivery-pipe of the pump,substantially as and for the purposes set forth.

In witness whereof I have signed this specification in presence of twowitnesses.

I MAX RO'BITSOHEK.

WVitnesses:

VIRSOR KERPL,

ALvEsTo S. IIocUn.

